Programmable limit switch unit



FIG. 1 is a perspective view of a programmable limit switch system embodying the new design.

FIG. 2 is a rear elevational view of the programmable controller thereof.

FIG. 3 is a bottom plan view thereof.

FIG. 4 is a left side elevational view thereof.

FIG. 5 is a right side elevational view thereof.

FIG. 6 is a bottom plan view of the component shown in perspective view at the left side of FIG. 1.

FIG. 7 is a back elevational view of the component.

FIG. 8 is a front elevational view of the component.

The broken line disclosure shown in FIG. 1 is for illustrative purposes only and forms no part of the claimed design. The two components of the unit are shown separately in FIGS. 2 and 8 for clarity of illustration only. 

The ornamental design for a programmable limit switch unit, as shown and described. 